require 'spec/adapters/ruby_engine/mri' require 'spec/adapters/ruby_engine/rubinius' module Spec module Adapters module RubyEngine ENGINES = { 'mri' => MRI.new, 'rbx' => Rubinius.new } def self.engine if const_defined?(:RUBY_ENGINE) return RUBY_ENGINE else return 'mri' end end def self.adapter return ENGINES[engine] end end end end